Door-check.



R. W. HUBBARD.

DOOR CHECK.

' APPLICATION FILED 14m19.190s.

Patented Ja11.4, 1910.

i UNITED sTA TES PATENT OFFICE,

RICHARD w. HUBBARD, or ASHTABULA,` oHIo.

" DOOR-CHECK.

,To all whom it ma/y? conc'emrf i Be it -known man, a citizenof theUnited States', residing at Alshtabul'a, in thel county' of4 Ashtabulaand vStarte of Ohio, ha-ve invented new and useful Improvements in'Door-Checks, of which the following is" a specification.

My present'invention relates to checks for doors, windows andffthe like;and i-thas for one of its objectstolpro-vide'acheck constructed with aview of securely holding doors that should not be lockedaga'inst cas-lnal opening, .and yetadapted to permit openingof the doorswhen the sameare subjected to pressure or pull. i I y 'Another' object oftheinvention is the provision of a check which is noiseless and not liableto give rise to jar when it goes into operation, and is, therefore,practically indestructible.

, Another Objectis vthe provision of a check which becanse'of itsconstruction is adapted to lbe used to advantage in combination withsliding window sash to -adjustably hold the same, and in otherapplications; Otherobjects and advantageous features of theinventionwill be fully understood from the followingy description and claim Awhenthe same -are read in connection with the drawings, accompanying andforming part of this specification, in which:

' Figure l is a section taken'through a door anda door-casing equippedwith improve ments. constituting the preferred embodiment of myinvention. Fig. 2 is a perspective view illustrating the globularplunger and its casing removed from the door.

Similar letters designate lcorresponding parts in both figures of thedrawings, re-` ferring to which:

A is a keeper or striking plate-fixed tothe inner side of the side stileof a door casing. The said keeper or striking plate is preferably ofmetal and is provided with a beveled edge a and a depression b, arrangedback of lthe. said beveled edge.

B is the casing of my novel check. This casing comprises a cylindricalportion c, interiorly threaded at its rear end, as indicated by 6l, vanda face plate e having apertures for the passage of attaching screws. Inap lying the said .casing itwill be observed that all that isnecessaryvis to bore a largeA "'c'ountersi'nk in the edge of the doorfor the receitm' of the face -plate e, and 'then a that I, RIoH'ARo AW.HUB- tion c, after which the casing 'may be.. fixed mthedoor and flushwith the edge thereof u Specicationof Letters Patent. Patuted Jan, 4,1910, Applicaties fueanareh 19, 1909. serial No. 484,446. l

smaller' Socket to receive the cylindrical por- 4 by passing' the screwsthrough the aperturesv f and'into the door. B-y reference to Fig. l itwill benoted that the forward end of the bore of the cas diameter, andit will also-be noted that in additlon to the 'casing B, myimprove-ments lcomprise a globular plunger C movable in the 'casing inAthe direction of the length thereof, a coiled spring I) backingthe "said'ing B is slightly contracted Aor reduced in i 'plunger, and a disk Efor regulating-the i In the practical use. of theembodiment'of I myinvention described'in the foregoing, it will be observed that when thedoor is swung to'a closed position, theglobular plunger C' will strikethe beveled edge` a' of thev keeper A and .giving rearwardly willridevto and A assume a position in the depression b of the keeper. Inthis latter position the globular plunger will eifectually preventcasual opening of the door even when the same is subjected toconsiderable wind pressure. When,

however, the door is steadily or suddenly subjected to push or pull, itwill'be seen that the globular plun er will leave the depression b in.keeper and tthe door may then be' freely opened. l v a The globular,spring-backed plunger C constitutes the chief feature of my presentinvention for it will be apparent that when said globular plunger lengages with the keeper at any point or in any position,`the pressing oflthe plunger against its spring causes the plunger to roll, with theres/ult that jar andnoise are eliminated and4 undue. wear of anyparticular part of the plunger is obviated. From this it follows thatthe rolling capacity .of the globular plunger coniio ` cases theglobular, spring-backed plunger may be made to directly engage thevstile-of a door casing and serve by frictional con tact to retain thedoorin'its closed position and against casual openin My improvements areaapted to be used to advantage in many applications otherI thanthose'described. For instance two of the checks may be arranged in theside Stiles of a window casing so that the globular plungers bearagainst opposite edges of a window sash and serve by frictiona'l contactto adjustably support or hold the sash in the position in which it isplaced.

In addition to the practical advantages hereinbefore ascribed to mynovel cheek,.it willbeobseryed that the same is simple and inexpensiveinConstruction'and is susceptibleef quick and easy installation.

. Having described my invention, what I i claim and desire to secure byLetters-Patent, is: I

. Ina check, the combination of a casing `having an apertured face plateat its forward .end and an4` interior thread in the rear end andalsohaving the forward end of its bore slightly contracted, a threadeddisk adjust-ably arranged. in 'the rear end of the casing body, aglobular .plunger arranged and Vmovable in the casing body,v andV acoiled' spring disposedin saidbody and .interposed betweenthe disk andthe globular plunger. l f

.In testimony whereof Ihave hereunto set my hand inpresence of twosubscribing wtnesses. Y

RICHARD W. HUBBARD Witnesses: A JNO. --P. HUBBARD,`

M. E. KUERiNGEN.

